By now, most people probably know about one of Secretary Hillary Clinton’s biggest campaign gaffes to date: “we’re going to put a lot of coal miners and coal companies out of business.” As soon as I heard it, I tweeted: “Imagine a presidential candidate running for office based on putting people out of work?”

People living near industrial silica sand facilities can breathe easier knowing a new, authoritative, peer-reviewed scientific study monitoring air quality at four frac sand facilities in northwestern Wisconsin has found these facilities have minimal impact on air quality in surrounding areas and do not pose a threat to nearby residents’ health.